new version from Christos -- 8-bit clean, lots of bug fixes

new version from Christos -- 8-bit clean, lots of bug fixes
massive changes, including a pass of indent.

SCCS-vsn: bin/csh/Makefile 5.19
SCCS-vsn: bin/csh/csh.c 5.21
SCCS-vsn: bin/csh/char.c 5.5
SCCS-vsn: bin/csh/char.h 5.6
SCCS-vsn: bin/csh/dir.c 5.6
SCCS-vsn: bin/csh/dir.h 5.4
SCCS-vsn: bin/csh/dol.c 5.9
SCCS-vsn: bin/csh/err.c 5.6
SCCS-vsn: bin/csh/exec.c 5.12
SCCS-vsn: bin/csh/exp.c 5.7
SCCS-vsn: bin/csh/file.c 5.12
SCCS-vsn: bin/csh/func.c 5.15
SCCS-vsn: bin/csh/glob.c 5.15
SCCS-vsn: bin/csh/csh.h 5.11
SCCS-vsn: bin/csh/hist.c 5.5
SCCS-vsn: bin/csh/init.c 5.8
SCCS-vsn: bin/csh/lex.c 5.11
SCCS-vsn: bin/csh/misc.c 5.7
SCCS-vsn: bin/csh/parse.c 5.7
SCCS-vsn: bin/csh/proc.c 5.16
SCCS-vsn: bin/csh/proc.h 5.4
SCCS-vsn: bin/csh/sem.c 5.12
SCCS-vsn: bin/csh/set.c 5.6
SCCS-vsn: bin/csh/time.c 5.9
SCCS-vsn: bin/csh/alloc.c 5.6